tzoncuepa.

Headword: 
tzoncuepa.
Principal English Translation: 

to turn somersaults; to turn something upside down (see Karttunen)

IPAspelling: 
tsonkwepɑ
Frances Karttunen: 

TZONCUEP(A) vrefl,vt to turn somersaults; to turn something upside down / da maromas (Z), vuelca (Z) [(4)Zp.82,130,174,199]. See TZON-TLI, CUEP(A).
Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 317.